This is how Warships.today do their maths

[iHaveNoIntelligence]

 

Just look at every average(WTR, Damage, Tier, etc) on the yellow marked column.

I didn't know that you can get less value then the least what you have by calculating the average. 

[danredda1616]

LOL average tier is best. Average no lower than 7... overall 3.8

 

[212thAttackBattalion]

Warships.today is drunk.... but don't worry, it's gone home

 

[Wulfgarn]

I don't really trust their numbers all that much. They have a funny way of calculating some things that we really don't know how they do it.

 

I trust this one more.

 

http://na.wows-numbers.com/

[Spud_butt]

alternate math.

[212thAttackBattalion]

I sometimes question their numbers.... e.g just before their site crashed for a bit, when it comes back, my WTR had dropped by 2 even though I'd played no matches during that time.